Tobacco-smoking pipe



W. P. M COY TOBACCO SMOKING PIPE Filed Feb 5, 1920 ATTORNEY Patented May 15, 1923.

UNITED STATEJTLS,

1,455,539 PATENT oFFIcE.

'wrLLIAM I MoCOY, or YoNKEIts, NEW YORK.

. TOBACCO-SMOKING PIPE.

Application filed February 5,1920. Serial No. 356,367.

To all whom it may concern: I Be it known that I, WILLIAM P.:MoCoY, a citizen of the United States, residing at Yonkers, in the county of WVestchester and State of New York, have invented a certain new and useful Improvement in Tobacco-Smoking Pipes,'-of which the followlowing is a specification.

The principal objectionable features which militate against the full enjoyment of tobacco smoke in pipes of the usual types are, first, the introduction of saliva through the mouthpiece or bit into the smoke channels,

resulting in obstructing such channels, and

draining into the bowl of the pipe, thereby fouling the tobacco therein; second, the withdrawal of a portion of such saliva, often charged with other disagreeable materials, into the mouth of the smoker; third,"the collection or deposit'of moisture in the smoke channels of the pipe stem and bowl, caused fourth, the collection of moisture in the. smoke channels of the pipe caused by the' condensation of the breath of the smoker when he casually injects his breath through the orifice in the mouthpiece or bit, which produces the same disagreeable results as stated above; and fifth, a so-called hotsmoke caused primarily by drawing the smoke vapor into the mouth before it has had sufiicient opportunity to cool out or lower its temperature to the desired degree.

The object of the invention is to; provide a pipe in which the foregoing objectionable features shall be eliminated, and which shall be practical in operation, easily and economically manufactured, readily assembled and disassembled, easily cleaned and freed from disagreeable or unhygienic matter, and of light weight, comfortable balance, and pleasing appearance.

The invention consists in certain novel features and details of construction by which the above objects are attained, to be hereinafter described and claimed.

The accompanyingdrawings form a part of this specification and, show preferred forms of the invention.- I 1 Figure l is a verticalsection through the bowl and stem of a pipe of the straight stem type.

Figure 2 is a similar view showing the invention'applied to afourred stem. pipe.

Figure 3 is a vertical section through a pipe bowl of modified form, adapted to-serve with a straight or curved stem.

Similar letters of reference indicate like parts in all the figures. I

Referring to F glue 1, isthe bowl-of the pipe which may be understood to be a briar root, meerschaumor other material,

having a channel a leading downwardly from the bottom of the bowl cavity, and a socket at B to receive the stem." I

The stem has a nipple C matching 'to and received in the socket B,'in which is an in clined channel 0 forming a continuation of the channel a and leading to an enlarge ment or chamber D in the stem which for convenience of description will be termed the expansion-chamber. This I expansion chamber extends upwardly from the stem in domedform, as; shown, and downwardly to form a well or trap 1E closed below by any suitable plug, or preferably by a screwc'ap F. c

From the expansion-chamber D the stem curves upwardly as as G' and thencedownwardly as at H and terminates in the mouthpiece or bit J. Between the high point of the curve and the bit, and near the latter is a second enlargement of the stem formed-in the lower portion thereof, pro viding a bit-chamber K in the smoke chan nel it having a well or t ra-p L below closed by the screw-cap M.

The caps F and M are-preferably inalinement with the base N of the bowl in this straight stem type, so thatthe'pi'pe may stand alone in the upright position on a table or like surface. The smoke channel j in the bit is shown as curved. upwardly to the bit orifice. v i

The hot smoke vapor-from the bowl A passes through the channels a and. 0 and is received in the expansion-chamber D where it is free toexpand, circulate and cool, and give up much of'its moisture by condensation on the walls of such chamber during its relatively slow travel therethrough. As

the walls and channels are downwardly in clined such moisture flows easily and freely to the trap E in which it collects.

From the expansion-chamber D the smoke. vapor, relieved of much of its moisture,

passes to the upwardly inclined channel g,

of less cross-sectional area than the ex ansionchamber, andis further cooled. l. oisture deposited in this portion of the stem is led back by the walls of the channel 9 to the trap E,' and similar deposition in the downwardly inclined channel it is received in the trap L of the bit-chamber K. The latter againslows the travel and gives the smoke vapor free opportunity to circulate, cool,

and give up moisture which is received in the trap L. It then passes through the bit channel j to the mouth'ot the. smoker, cooled and freed from any condensable deleterious or objectionable matter.

It Will be noted that any saliva from vthe mouth of the smoker or moisture introduced by the breath will follow thewalls of the bit channel and be led to the trap L.

In Figure 2 the bowl A chamber D and trap E are similar to the corresponding parts in Figure l, the channel 3 extends angularly upward and has a bit-chamber K? and its trap L located at a higher level as required by the curved stem.

In v Figure 3 the expansion-chamber D and trap E are formed integrally With the boWl A and is provided With a nipple R adapted to receive a stem ofeither of the types shown in Figures 1 and 2, aswillbe understood. v x

The functions performed by the corresponding parts are the same in all the forms shown.,;ln all of the forms the expansion chamber constitutes a place Where the smoke and a stem, there being an expansion chamber communicating With said channel exte;

riorly and adjacent the boWl, the passage throughthe stem curved upwardly from said expansion chamber, and a bit chamber intermediate, the mouthpiece and said expansion chambe'r. I p 2,2. tobacco smoking pipe comprising a bowl having a channel extended down- Wardly from the bottom of the bowl cavitv,

and a stem, there beingan expansion chamber communicating with said channel exteriorly and ad acent the bowhthe passage through the stem curved upwardly from said expansion chamber, a bit chamber inter- I mediate the mouthpiece and said expansion chamber, a trap inthe bottom of the e pa sion chamber, and a trap at the bottomof said b it chamber. i I

a In testimony that I claim theinve'n tiou above set forth I afiix my signature.

WILLIAM r. Mocor. 

